WO2008086856A1 - Continuous casting die with coolant channel - Google Patents
Continuous casting die with coolant channel Download PDFInfo
- Publication number
- WO2008086856A1 WO2008086856A1 PCT/EP2007/010773 EP2007010773W WO2008086856A1 WO 2008086856 A1 WO2008086856 A1 WO 2008086856A1 EP 2007010773 W EP2007010773 W EP 2007010773W WO 2008086856 A1 WO2008086856 A1 WO 2008086856A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- turbulence
- continuous casting
- generating elements
- mold
- wall
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
Definitions
- the invention relates to a continuous casting mold with a coolant channel which is formed by a, the molten metal facing mold inner wall as a hot side, a mold outer wall as a cold side and a right and left side wall.
- a mold wall of a continuous casting mold which consists of a Kokilleninnenplatte and one connected to the Kokilleninnenplatte via screw connections water tank, wherein the mold inner plate on its side facing the water tank webs with grooves extending therebetween, are arranged in the filling pieces ,
- the grooves serve as cooling channels for a cooling liquid, usually water.
- the patches serve to reduce the channel cross-section, so that the speed of dilution of the cooling liquid in the cooling channel increases.
- Continuous casting molds with cooling channels are furthermore known from the documents DE 101 22 618 A1, DE 100 35 737 A1 and DE 101 38 988 C2.
- a mold for the continuous casting of molten metals, in particular steel is known, with cooling channels such as cooling grooves, cooling slots or cooling holes in the Kokillenh designedseite opposite contact surface.
- the heat transfer of the mold is improved in that the geometric configurations of the heat-transmitting surfaces of a cooling channel or a group of cooling channels in shape, cross-sectional area, circumference, interface properties, orientation to the contact surface, arrangement and / or arrangement density compared to the contact surface of the local formation of heat flux density and / or temperature of the con- contact surface in the casting operation, and in particular in GittyLite Kunststoffe adapted.
- the liquid melt flows from a continuous casting distributor through a dip tube into an oscillating, water-cooled copper mold.
- the melt temperature drops below the solidus temperature and it forms a thin strand shell, which is withdrawn in the casting direction.
- the thickness of the strand shell increases until the strand is completely solidified.
- casting speeds of 6 m / min and more are achieved today.
- Typical local heat flux densities are on the order of up to 12 MW / qm.
- the dissipated by the coolant heat flow is u. a.
- the wall roughness and the flow rate and thus also on the degree of turbulence.
- the higher the degree of turbulence on the coolant side the more intense the mixing and the more heat is dissipated.
- the heat-transferring area can be increased, however, this enlargement has narrow limits.
- fouling Since the deposits have a very low thermal conductivity, fouling in the case of Kokillenkühlung leads to a strong increase in the copper temperature and thus to a reduced service life of the mold.
- the invention has for its object to provide a continuous casting mold, in which the recrystallization process of the mold material or the material of the walls of the coolant channel, which is dependent on the operating temperature and operating time is delayed, the life of the mold and the turbulence increases and a homogeneous Mixing of the coolant is achieved.
- the coolant channel is formed with turbulence generating elements.
- turbulence-generating elements By introducing turbulence-generating elements is generally achieved a greater mixing of the coolant.
- the turbulence-generating elements increase the heat-transferring area of the coolant channel or of the mold walls. The interaction of both measures, i. Turbulence generation and enlargement of the heat transfer surface, improves the local heat transfer from the walls of the coolant channel or from its walls to the coolant, which then dissipates the heat.
- the material of the mold or the mold walls is for example copper, partially copper or another material. Furthermore, the contamination and the tendency to deposit are reduced by the increased turbulence and the greater shear forces on the hot side of the cooling channel.
- a first embodiment of turbulence-generating elements consists of horizontal steps in the coolant formed, for example, by rectangular profiles extending over the entire width or portions of the coolant channel.
- a second and third embodiment of turbulence generating elements is in the form of tetrahedrons and winglets. In these forms, inwardly rotating swirl pegs are induced, which lead to an even more intensive mixing of the coolant. Vortex pegs can be observed for example at the end of a wing profile or behind motor vehicles, where they are in principle undesirable.
- the turbulence-generating elements are arranged offset one after the other on the hot side, for example, the distance being largely determined by the spatial extent of the upstream recirculation area.
- the turbulence-generating elements can also be installed on the cold side, since the effect of the recirculation extends to the hot side.
- a combination of tetrahedrons on the cold side and horizontally mounted steps on the hot side of the coolant channel is also possible. It is also conceivable to install the turbulence-generating elements only in the entry of a coolant channel or only at the level of the casting mirror in order to keep the manufacturing effort within limits.
- the heat transfer surface is through the turbulence elements slightly increased, in the tetrahedra described by about 6%. In this way, the local heat flux density is increased. Due to the dimensions of the turbulence elements not too large, the pressure loss can be kept low.
- the basic mode of operation of the coolant channel according to the invention can be demonstrated by means of numerical flow simulations (CFD - Computational Fluid Dynamics).
- FIG. 3 is a sectional front view of the continuous casting mold with turbulence-generating elements according to a second embodiment
- turbulence-generating elements 7, 9 and 10 are mounted on the mold inner wall 3, the hot side, and protrude into the coolant channel 2.
- FIG. 2 shows, in a sectional front view, the coolant channel 2 in which 11 turbulence-generating elements 7 in the form of tetrahedrons are mounted on the mold inner wall 3 in two rows.
- the tetrahedra point with their tip counter to the flow direction 8. By such an arrangement, a building resistance is generated. Behind the tetrahedron, the coolant behaves turbulently.
- the tetrahedra can also be arranged offset.
- FIG. 3 shows turbulence-generating elements 9 in the form of horizontal steps.
- the horizontal steps are formed, for example, by a rectangular bar (see FIG. 5) which extends over the entire width of the coolant channel 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002670037A CA2670037A1 (en) | 2007-01-17 | 2007-12-11 | Continuous casting chill with a coolant duct |
JP2009545093A JP2010515580A (en) | 2007-01-17 | 2007-12-11 | Continuous casting mold with refrigerant passage |
BRPI0718884-6A BRPI0718884A2 (en) | 2007-01-17 | 2007-12-11 | CONTINUOUS FOUNDRY CHAIN WITH CHILLING CHANNEL |
MX2009007659A MX2009007659A (en) | 2007-01-17 | 2007-12-11 | Continuous casting die with coolant channel. |
EP07847053A EP2121218A1 (en) | 2007-01-17 | 2007-12-11 | Continuous casting die with coolant channel |
US12/448,953 US20100065242A1 (en) | 2007-01-17 | 2007-12-11 | Continuous castings die with coolant channel |
CN2007800500903A CN101646515B (en) | 2007-01-17 | 2007-12-11 | Continuous casting mold with coolant channel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007002405.5 | 2007-01-17 | ||
DE102007002405A DE102007002405A1 (en) | 2007-01-17 | 2007-01-17 | Continuous casting mold with coolant channel |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008086856A1 true WO2008086856A1 (en) | 2008-07-24 |
Family
ID=39168055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/010773 WO2008086856A1 (en) | 2007-01-17 | 2007-12-11 | Continuous casting die with coolant channel |
Country Status (15)
Country | Link |
---|---|
US (1) | US20100065242A1 (en) |
EP (1) | EP2121218A1 (en) |
JP (1) | JP2010515580A (en) |
KR (1) | KR20090077925A (en) |
CN (1) | CN101646515B (en) |
AR (1) | AR064927A1 (en) |
BR (1) | BRPI0718884A2 (en) |
CA (1) | CA2670037A1 (en) |
DE (1) | DE102007002405A1 (en) |
MX (1) | MX2009007659A (en) |
RU (1) | RU2414986C1 (en) |
TW (1) | TW200909099A (en) |
UA (1) | UA92985C2 (en) |
WO (1) | WO2008086856A1 (en) |
ZA (1) | ZA200902185B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017206914A1 (en) | 2017-04-25 | 2018-10-25 | Sms Group Gmbh | Continuous casting mold with flow-optimized cooling |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113015587B (en) * | 2018-11-09 | 2022-12-27 | 杰富意钢铁株式会社 | Mold for continuous casting of steel and method for continuous casting of steel |
JP7020376B2 (en) * | 2018-11-09 | 2022-02-16 | Jfeスチール株式会社 | Mold for continuous steel casting and continuous steel casting method |
CN109434044A (en) * | 2018-11-29 | 2019-03-08 | 李泽朋 | Band makes the reasonable continuous casting crystallining copper sheet mode structure of unrestrained effect cooling structure |
RU2711276C1 (en) * | 2018-12-05 | 2020-01-16 | Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" | Device for continuous casting and pressing |
IT201900001035A1 (en) * | 2019-01-24 | 2020-07-24 | Danieli Off Mecc | INGOT MILL FOR CONTINUOUS CASTING |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2661120A3 (en) * | 1990-04-20 | 1991-10-25 | Siderurgie Fse Inst Rech | Ingot mould for the continuous casting of liquid metal equipped with means for controlling the solidification of the liquid metal |
EP0686446A1 (en) | 1994-06-06 | 1995-12-13 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Continuous-casting crystalliser with increased heat exchange and method to increase the heat exchange in a continuous-casting crystalliser |
EP0686445A1 (en) | 1994-06-06 | 1995-12-13 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Method to control the deformations of the sidewalls of a crystalliser, and continuous-casting crystalliser |
EP0686444A1 (en) | 1994-06-06 | 1995-12-13 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Downstream mould portion with thin sidewalls for continuous casting |
WO1996009906A1 (en) * | 1994-09-27 | 1996-04-04 | Aluminum Company Of America | Cooling insert for casting mold and associated method |
EP0730923A1 (en) * | 1995-03-08 | 1996-09-11 | KM Europa Metal Aktiengesellschaft | Mould for continuous casting of metals |
DE19826522A1 (en) | 1998-06-15 | 1999-12-16 | Schloemann Siemag Ag | Mold wall of a continuous casting mold |
DE19842674A1 (en) | 1998-09-17 | 2000-03-23 | Schloemann Siemag Ag | Mold wall of a continuous casting mold |
WO2000041830A1 (en) | 1999-01-13 | 2000-07-20 | Danieli & C. Officine Meccaniche Spa | High speed continuous casting device and relative method |
DE10035737A1 (en) | 2000-07-22 | 2002-01-31 | Sms Demag Ag | Continuous casting mold with copper plates enclosing the casting cross section |
DE10122618A1 (en) | 2001-05-10 | 2002-11-14 | Sms Demag Ag | Process for delaying the formation of deposits in cooling channels of continuous casting molds |
DE10138988C2 (en) | 2000-08-23 | 2003-06-12 | Sms Demag Ag | Chilled continuous casting mold for casting metal |
DE10253735A1 (en) | 2002-04-27 | 2003-11-13 | Sms Demag Ag | Intensification of the heat transfer in continuous casting molds |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4716954A (en) * | 1986-10-24 | 1988-01-05 | Allegheny Ludlum Corporation | Method and apparatus for sequentially continuous casting different composition grades of steel |
DE69518360T2 (en) * | 1994-06-06 | 2000-12-28 | Danieli & C. Officine Meccaniche S.P.A., Buttrio | Continuous casting mold with improved heat exchange and method for increasing the heat exchange of a continuous casting mold |
CN1240685A (en) * | 1998-07-02 | 2000-01-12 | Sms舒路曼-斯玛公司 | Wide side of flat ingot mould |
DE10337205A1 (en) * | 2003-08-13 | 2005-03-10 | Km Europa Metal Ag | Liquid-cooled mold |
-
2007
- 2007-01-17 DE DE102007002405A patent/DE102007002405A1/en not_active Withdrawn
- 2007-12-11 UA UAA200908561A patent/UA92985C2/en unknown
- 2007-12-11 WO PCT/EP2007/010773 patent/WO2008086856A1/en active Application Filing
- 2007-12-11 TW TW096147157A patent/TW200909099A/en unknown
- 2007-12-11 CA CA002670037A patent/CA2670037A1/en not_active Abandoned
- 2007-12-11 MX MX2009007659A patent/MX2009007659A/en unknown
- 2007-12-11 KR KR1020097008292A patent/KR20090077925A/en not_active Application Discontinuation
- 2007-12-11 EP EP07847053A patent/EP2121218A1/en not_active Withdrawn
- 2007-12-11 JP JP2009545093A patent/JP2010515580A/en not_active Withdrawn
- 2007-12-11 US US12/448,953 patent/US20100065242A1/en not_active Abandoned
- 2007-12-11 BR BRPI0718884-6A patent/BRPI0718884A2/en not_active IP Right Cessation
- 2007-12-11 CN CN2007800500903A patent/CN101646515B/en not_active Expired - Fee Related
- 2007-12-11 RU RU2009131056/02A patent/RU2414986C1/en not_active IP Right Cessation
-
2008
- 2008-01-16 AR ARP080100195A patent/AR064927A1/en not_active Application Discontinuation
-
2009
- 2009-03-26 ZA ZA200902185A patent/ZA200902185B/en unknown
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2661120A3 (en) * | 1990-04-20 | 1991-10-25 | Siderurgie Fse Inst Rech | Ingot mould for the continuous casting of liquid metal equipped with means for controlling the solidification of the liquid metal |
EP0686446A1 (en) | 1994-06-06 | 1995-12-13 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Continuous-casting crystalliser with increased heat exchange and method to increase the heat exchange in a continuous-casting crystalliser |
EP0686445A1 (en) | 1994-06-06 | 1995-12-13 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Method to control the deformations of the sidewalls of a crystalliser, and continuous-casting crystalliser |
EP0686444A1 (en) | 1994-06-06 | 1995-12-13 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Downstream mould portion with thin sidewalls for continuous casting |
WO1996009906A1 (en) * | 1994-09-27 | 1996-04-04 | Aluminum Company Of America | Cooling insert for casting mold and associated method |
EP0730923A1 (en) * | 1995-03-08 | 1996-09-11 | KM Europa Metal Aktiengesellschaft | Mould for continuous casting of metals |
DE19826522A1 (en) | 1998-06-15 | 1999-12-16 | Schloemann Siemag Ag | Mold wall of a continuous casting mold |
DE19842674A1 (en) | 1998-09-17 | 2000-03-23 | Schloemann Siemag Ag | Mold wall of a continuous casting mold |
WO2000041830A1 (en) | 1999-01-13 | 2000-07-20 | Danieli & C. Officine Meccaniche Spa | High speed continuous casting device and relative method |
DE10035737A1 (en) | 2000-07-22 | 2002-01-31 | Sms Demag Ag | Continuous casting mold with copper plates enclosing the casting cross section |
DE10138988C2 (en) | 2000-08-23 | 2003-06-12 | Sms Demag Ag | Chilled continuous casting mold for casting metal |
DE10122618A1 (en) | 2001-05-10 | 2002-11-14 | Sms Demag Ag | Process for delaying the formation of deposits in cooling channels of continuous casting molds |
DE10253735A1 (en) | 2002-04-27 | 2003-11-13 | Sms Demag Ag | Intensification of the heat transfer in continuous casting molds |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017206914A1 (en) | 2017-04-25 | 2018-10-25 | Sms Group Gmbh | Continuous casting mold with flow-optimized cooling |
Also Published As
Publication number | Publication date |
---|---|
RU2414986C1 (en) | 2011-03-27 |
BRPI0718884A2 (en) | 2013-12-17 |
CA2670037A1 (en) | 2008-07-24 |
UA92985C2 (en) | 2010-12-27 |
AR064927A1 (en) | 2009-05-06 |
TW200909099A (en) | 2009-03-01 |
CN101646515B (en) | 2012-06-13 |
JP2010515580A (en) | 2010-05-13 |
CN101646515A (en) | 2010-02-10 |
MX2009007659A (en) | 2009-10-13 |
KR20090077925A (en) | 2009-07-16 |
DE102007002405A1 (en) | 2008-07-24 |
ZA200902185B (en) | 2010-01-27 |
EP2121218A1 (en) | 2009-11-25 |
US20100065242A1 (en) | 2010-03-18 |
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